Refrigerating apparatus



April 8, 1930. G. MUFFLY 1,753,802

REFRIGERATING APPARATUS Filed March 3, 1927 IN V EN TOR.

GLE/V/V MUFFL) 2; i 7 A TTORNEYS.

Patented p Apr. 8, 1930 GLENN MUEFLY, OF DETROIT, MICHIGAN,

ASSIGNOR T COPELAND PRODUCTS, INC.,

OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN ammennarrne arram'rusApplication filed March 3,

In the provision of refrigerant tanks which are to supply refrigerant toexpansion chambers of refrigerating systems" considerable difficulty hasheretofore been encountered in adjusting the liquid level oftherefrigerant in the expansion chamber. It has been customary toprovidefloat controlled valves in j the refrigerant tanks and inorder toad ust the osition of same, it has been necessary to either provide theadjustment on the inside of the tank, necessitating disassembly of thetank in order to make the adjustment, or to extend the adjustmentthrough a packed gland to the outside of the tank.

It is one of the primary objects of my invention to provide for anadjustment of the fluid level without either of these contingenciesbeing present. Specifically, my invention encompasses the positioning ofthe re- L frigerant'tank in such a manner that it may be raised orlowered with respect to the expansion chamber, and the refrigerant'inthe chamber thereby easily controlled without any possibility of leakage.or necessity for disassembly of the parts in order to secure I theadjustment.

' With the above and other objects inview, my invention consists in thearrangement, combination and construction of the various parts'of myimproved device as described in the specificaitiomclaimed in 'my claimsand shown in the accompanying drawings, in

which: 1 Fig. lis a transverse sectional'view of an :5 expansionchamber-and refrigerant tank embodying my invention.

Fig. 2 is a sectional view taken longitudi nally of the tank. a Fig. 3is a detail view taken on line 33 of Fig. 1. j J i I have shown anexpansion chamber 5 of the conventional sheet metal type,embodyin-gsuperposed sheets of metal 6 and 7 the edges of which are suitablyjoined and sealed as at 8 and the intermediate portions of which arespot-welded together as at 9 to provide refrigerant courses between thesheets.

Secured to the freezer and particularly on the sheet 6 is an anglebracket 29 having an elongated slot 10 therein. Extending 1927. SerialNo. 172,273.

through the slot 10 is a bolt 11 which also extends through an aperturein the abutting face of the angle bracket 12 which is provided on arefrigerant container'or tank 13.

A lock washer 14 and nut 15 serve to secure the brackets 29 and 12together, it being readily apparent that by loosening the nut 15 thetank 13 may be vertically adjusted by reason of the movement of the bolt11 in the slot 10 of the bracket29. I

Refrigerant from a suitable source of supply is fed to the tank 13through a pipe 16, passage 17 and needle valve 18, the latter beingcontrolled by the float '19 secured on tlie rod 20 which is pivoted tothe tank as at 2 A passage 22 extends from adjacent the portion of theexpansion chamber 5 and a similar passage 23 extends from adjacentthe'top of the tank '13 to the top of aportion of the expansion chamber 5.Thus refrigerant may pass from the tank 13 to the chamber 5 until thelevel in the two is equal, as shown in Fig. 1 If it is desired to lowerthe level of the refrigerant in the chamber 5, it is necessary only tolower the tank 13 by loosening the nut 15 and lowering the bracket 12 inits connection with the bracket 29. Obviously, the level in the chamber5' may be raised by elevating the tank in the same manner.

It will be obvious that the dual passa es 22 and 23 serve to equalizethe levels %etween theexpansion chamber 5 and tank 13 and that thesepassages should consist of flexible tubing or other suitable materialwhich will permit of bending when the tank and chamber are verticallyadjusted relative to each other.

It will be obvious that my invention may be served by tilting theassembly of expansion chamber and refrigerant tank, so that I desireitto be understood that my invention encompasses the vertical adjustmentof the two elements with respect to each other irrespective of-how theadjustment is accomplished;

It will be obvious that various changes may be made in the arrangement,combinabottom of the tank 13 to the bottom of a i tion and constructionof the various parts of my improved device without departing from thespirit of my invention, and it is my intention to cover by my claimssuch chan es as may be reasonably included within t e scope thereof.

, What I claim is:

1. In combination, a refrigerant container and an expansion chamber, apassage connecting the two, a bolt extending through apertures inco-operating brackets on the chamber and container, at least one of saidapertures beingelongated, and means for securing the bolt in theapertures to hold the chamber and container in adjustable assembly.

2. In combination, a refrigerant container and an expansion chamber, apassage connecting the two, a bracket on the container and a bracket onthe chamber, each having an aperture therein, at least one of theapertures being elongated, and a bolt extended through the a ertures andsecuring the container and charm er in adjustable assembly.

- 1 GLENN MUFFLY.

